Slide fastener device



SLIDE FASTENER DEVICE Filed ont. 31', 1942' 7 4/ .v .e v "Fh i iiiii n, undnunnnlhnn. ./W

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Patented Feb. 12, 1946 UNITED sTATEs lPATENT l oFEicE l SLIDE FASTENER DEVICE Harvey L. Williams, Greenwich, Conn., and Paul S. Kellum, Newark, N. J., assig'nors to Crown Fastener Corporation, Warren, lt. I., a corporation of Delaware Application. October 31, 1942, Serial No. 463,996

10 Claims.

This invention relates to fastening structure of the type in which two series of cooperating fastening elements 'mounted on tapesl are coupled and uncoupled by the movement of slide structure longitudinally of said series.

One of the objects ofthe invention is to provide structure which will enable the operator to maintain between said series of fastening elements an opening of predetermined dimensions which may be moved progressively along saidv channels 6C, 6D are aligned with fastener-guide ing paths 4C, 4D, respectively.

tapes longitudinally thereof by maintaining the The channels 6A, 6B arevaligned with fastener.

riding paths 4A and 4B, respectively, and the The sliders 5, 5A include top and bottom'walis 8- from which flanges 9 depend in spaced relation, as shown, forming slots I0 to permit the passage of tapes I I.

The sliders 5, 5A may be pivotally `ioined to the ring I by means of pins I3 mounted in brackets I4 welded or otherwise secured to the ring I, the pins I3 passing through holes in the Webs 1.

One of the applications of the invention is the provision of a' closure for the elongated slot in a machine gun turret, the gun being mounted so l that the barrel thereof may be swung through a ing between a pair of tapes provided with separable fasteners;

Fig. 2 is an edge view looking in-the direction of the arrow in Fig. 1;

Fig. 3 is a section on line 3--3 of Fig. 1; and .4 Fig. 4 is a section on line 4-4 of Fig. 1. It will be understood of course that numerous other embodiments of the principles of the invention and departures from the specific fonn shown herein may be made while stiILembodying the principles disclosed and claimed.

In accordance with the invention, slide structure is'provided including a body portion. This may take the form of. a ring I having an opening dened by peripheral-inner surface 2. A gun barrel 3 protrudes through this opening. The body portion or ring I has curved parts, partly. defined by outer surfaces 4,'which are disposed about and in spaced relation to the inner peripheral opening-defining surface 2. The said curved parts 4 are adapted to form fastenerriding paths, as will more fully hereinafter be explained.

From each oi the sides of the transverse line 4-4 of Fig. 1, each pair of riding paths 4A-4B and 4C-4D converge toward each other and join or merge into single fastener-guiding channels in sliders Emarigjwrespetively, at .each of two "oposiieywdis'posed parts ofthe slide structure.

These single fastener-guiding channels in sliders 5 and 5A may take the form of conventional slide structure having channels 6 separated by web 1.

desired part of the slot. By using this invention, the turret. slot may be maintained in closed condition, notwithstanding movement of the gun barrel, atl substantially all points except the opening in the slide structure through which the gun barrel protrudes. Of course the gun barrel must move back and forth in its slot. Therefore the fastening elements I2 must be adapted and constructed so-that they will readily close or open when the slide structure is moved in either direction longitudinally of thel tapes by the gun barrel.

The speciiic form of fastening element shown may be used to perform the stated function in cooperation with the slide structure by spacing the elements I2, as shown, to such an extent that they will not jam when the slider moves, to engage said elements. in a, direction opposite tothat normally employed to close that specic form of element., Another form of element which may be used is shown in United States Patent No. 1,571,095, issued January 26, 1926, to Perrault.

',In general. any form of the complementary ele- 4of the tape vwhen the ments of the two series thereof mounted on their respective tapes, which is adapted to permit said series of elements to readily engage and disengage by movement of the slide-structure in either 4direction longitudinally of said tapes, may be used.

The specific form of fastenerfriding paths (4A to 4D) shown permits the fasteners or scoops I2 to turn through an angle of ninetydegrees as they emerge from the channels- BYA, 6B, D and 8C and to follow an arcuate path as shown most clearly in Fig. 2. This tends toprevent distortion slot closure is of limited width.

We claim: 1. separable fastener slide structure adapted to couple and uncouple two series of cooperating ,fastening elements mounted on tapes and to lmaintain between said series of fastening elements an opening -of predetermined dimensions which may be progressively shifted along said tapes longitudinally thereof by maintaining the fastening elements corresponding to said opening in uncoupled condition` While maintaining the remainder of the fastening elements of said tapes in coupled condition, said slide structure comprising a body portion having an opening therein, said opening being defined by peripheral surface of said body portion, said body portion having a pair of spaced fastener-riding unconfined paths defined by curved parts of said body portion, said curved parts being disposed about and in spaced relation to said peripheral opening-defining surface, a pair of slider structures including converging fastener-guiding confined channels partly defined 'by top and bottom walls and a transverse web member and converging into maintain between said series of fastening elements an opening of predetermined dimensions which may be progressively shifted along said v tapes longitudinally thereof by maintaining the fastening elements corresponding to said opening in uncoupled condition while maintaining the remainder of the fastening elements of said tapes in coupled condition, said slide structure comprising a body portion having an opening therein, said opening being denedby peripheral surface of said body portion, said body portion having a pair of spaced fastener-riding unconflned paths defined by curved parts of said body portion, said curved parts being disposed about and in spaced relation to said peripheral opening-dening surface, said riding paths converging toward each other and merging into a single confined channel within sliders attached to said body portion at each of two opposite parts of said slide structure respectively, each snder'being pivoted to said body` Portion.

-3. A slidestructure including a pairfof tapes,

two series of complementary and'cooperating separable fastening elements mounted on said tapes and means adapted to maintain between said series of fastening elements an opening of predefined by top and bottom walls and atiansv verse web member and converging into a single fastener-guiding conned channel, at each` of two opposite parts of said slide structure said fastener-riding unconfinedpaths converging toward each other adjacent each of said opposite parts, said convergent riding paths being aligned with said converging confined guiding channels,r

respectively, and said structure further including complementary and cooperating fastening'elements adapted to be readily coupled and uncoupled by movement of said slide structure in any direction longitudinally of said tapes.

4. separable fastener slide structure adapted to couple and uncouple two series of cooperating fastening elements mounted on stringers and to maintain between said series of fastening elementsan opening of predetermined dimensions l extending progressively along said stringers longitudinally thereof by maintaining the fastening elements corresponding to said opening in uncoupled condition while maintaining the remainder of the fastening elements of said stringers in coupled condition, said slide structure comprising two sliders each having a narrow end and a wide end and a pair of walls connected to and spaced by a web portion and partly defining a pair of channels converging at the narrow end and diverging at the wide end; means connecting said sliders and adapted to maintain them in spaced relation longitudinally of said stringers and with the wide ends of the sliders facing each other, said sliders and means-.being pivotally connected; and arcuate guiding means between said sliders spaced laterally of said stringers providing movement of said fastening elements relatively to said means in arcuate unconfined paths concave in relation to each otherrand aligned with the divergent channels of the sliders.

5. Separable fastener slide structure adapted to couple and uncouple two series of cooperating fastening elements mounted on stringers and to maintain between said series of fastening elements an opening of predetermined dimensions r extending progressively along said stringers londer of the fastening elements of said stringers in determineddimensions which may be' shifted progressively along said tapes longitudinally thereof by maintaining thefastening elements corresponding to said opening in uncoupled condition while maintaining the remainder of the fastening elements of said tapes in coupled condition, said structure including a vslide comprising a body portion having an opening therein, said opening being dened by peripheral surface of said body portion, said body portion having a pair of spaced fastener-riding unconfined paths defined byv curved parts of said body portion, said curved parts being disposed about and in spaced relation to said peripheral .opening-defining surface, `a pair of converging fastener-guiding con/finedchannels formed within sliderv structures pivoted to said body portion, said slider structures partly coupled condition, said slide structure comprising two sliders each having l.a narrow end and a wide end and a pair of walls connected to and spaced by a web portion and partly defining a pair of ,channels convergingat the narrow end and dil verging at the wide end; guiding means, includlng a ring, connecting said' sliders and adapted to maintain them in spaced relation longitudinally of said stringers with the wide ends of the sliders facing each other, portions of said ring being spaced laterally of said stringers and providing movement of said fastening elements relatively to said ring in arcuate unconflned paths concave in relation to each other and aligned with the divergent channels of the sliders,l and pivotal connections between said guiding means and said sliders.

8. separable fastener slide structure adapted to couple and uncouple two series of cooperatingfastening elements mounted on stringers and to maintain between said series of fastening` elel ments'an opening-of predetermined dimensions extending progressively along saidvstringers longitudinally thereof by maintaining thel fastening elements corresponding to said opening in uncoupled condition while maintaining the 'remainsaid means including arcuate guiding means between said sliders spaced laterally of said stringers and providing movement of said fastening elements relatively to said means in arcuate unconflned paths concave in relation to Ieach other and aligned with the divergent channels of the sliders. y

'7. separable fastener slide structure adapted to couple and uncouple two series of cooperating fastening elements mounted on stringers and to maintain between said series of fastening elements an opening of predetermined dimensions extending progressively along said stringers longitudinally thereof by maintaining the fastening elements corresponding to said opening in uncoupled condition whilemaintaining the remain- ,der of the fastening elements of said stringers in coupled condition, said slide structure comprising two sliders each having a narrow end and a wide vencl and a pair of walls connected to and spaced by aweb portion and partly defining a pair of channels converging at the narrow end and diverging at the wide end; guiding means, includingv a ring, connecting said sliders and adapted to'maintain them in spaced relation longitudinally of said stringers with the wide ends of the sliders facing each other, the sliders being pivotally connected to said means, portions of said ring being spaced laterally of said stringers and providing movement of said fastening elements relatively to said ring in arcuate unconiined paths concave in relation -to each other and aligned with the divergent channels of the sliders.

8. Separable fastener slide structure adapted to couple and uncouple two series of cooperating prising two sliders each having a narrow end and a wide end with curved walls connected to and spaced by a web portion and partly defining a pair of channels converging at the narrow end and diverging at the wide end, means connecting said sliders and adapted to maintain them ink spaced relation longitudinally of said 'stringers and with the wide ends of the sliders facing each other, said means located in the same'plane as y v the plane of said sliders, and arcuate guidingA means between saidsliders spaced laterally of said stringers providing movement of said fastening elements relative to said means in arcuate unconned paths concave in relation to each other and aligned with the divergent channels of said sliders. 'f

9. In a fastening device, a pair of fastener stringers eachhaving a continuous ,series of cooperating fastener elements arranged in uniformly spaced relation along said stringers, a'pair of slider structures spaced apart and mounted 'on f said elements and a member connected-to each l from each other at the end of the slider structure' fastening elements mounted on stringers and to maintain between said series of fastening elements an opening of predetermined dimensions extending progressively along said stringers clongitudinally thereof by maintaining the fastening elements corresponding to said opening in unv coupled condition while maintaining the remainder of the fastening elements of said stringers in coupled condition, said slide structure comof said slider structures and arranged to ,hold

them in spaced relation to each other on saidl elements, each of said slider structures having fastener element channels therein which diverge adjacent said member, the fastener elements being disconnected between the ends of said slider structure adjacent said member and fastening means adapted to attach said slider structures to said member, said means adapted to lie inl the same plane as the plane of said slider structures and to connect lthe divergent end of each slider structure to'said member.

10. In a fastening device, a pair of lfastener stringers each having a continuous series of cooperating fastener elements arranged in uniformly spaced relation along said stringers, a pair of slider structures spaced apart andmounted on said elements, a member connected to each of said slider structures and arranged to hold them in spaced relation on said elements, means comprising a pivot arranged in the same plane as said slider structure for connecting said slider structures to said member at the divergent ends of each slider structure, each of said slider structures having fastener element channels therein which diverge from each other at the end of said slider structure adjacent said' member and the fastener elements being disconnected between the ends of said slider structures adjacent said member. l l

- HARVEY L. WILLIAMS.

PAUL S. KEILUM. 

